Any thing i can do so i can still have my exhaust warranty
Well then the only option is to not touch anything.
The whole premise of the warranty is to protect the car owner from having to pay for repairs caused by poor quality parts, improper assembly, defective parts, etc. The manufacturer assumes responsibility if the part does not perform as intended and covers the cost of the part and repairs.
Now here's the big one that I don't understand how people can not grasp the idea.
If you put on
AFTERMARKET EQUIPMENT, it is no longer O.E.M. and they are no longer responsible for that part. There's no effing way they are going to warranty something that ISN'T there problem. They didn't make it and they don't know if it will change the operation of other components, like engine fueling(even if it is GM doesn't know or care, there's lots of crap parts out there).
So logically you're on your own with that aftermarket part at a minimum and possible more of the warranty if the new part screws with other things (like a tune, or aftermarket turbo).
The warranty also doesn't cover improper installation of parts, so if joe schmoe messes up installing a strut or exhaust GM's not gonna cover it. Similarly if you damage the part GM's not gonna cover it, things like a dent in the rim from potholes, burning up your clutch, blowing your engine from not changing the oil, etc won't be covered.
It's alot like dog responsibility. If my dog poops in someones yard or worse yet bite's someone then I'm responsible (me being GM, the dog is the car, and the poop/bite is a part failure). Now if YOUR dog does that I'm sure as sh!t not going to cover the medical bills or pick up the mess because it is no longer my responsibility (you're the car owner, the dogs aftermarket parts, and the poop/bite is a part failure).
There's also this act:
Magnuson?Moss Warranty Act - Wikipedia, the free encyclopedia , which helps protect consumers but it can be a hassle to get somethings covered and I've explained why in a few other threads.